Re: using opam ?

On Wed, Nov 6, 2013 at 2:56 PM, Vu Ngoc San <[email protected]> wrote:

in fact : `ocamlfind ocamlc -where` gives
> /usr/lib/ocaml
>

Something is still wrong then. It should give you a path under your .opam
directory. Try running this command:

eval `opam config env`

and then see if the output of `ocamlfind ocamlc -where` changes. Then make
sure you're running this command in your login scripts.




Le 06/11/2013 20:08, [email protected] a écrit :
>
>
>
> -[ Wed, Nov 06, 2013 at 05:44:01PM +0100, Vu Ngoc San ]----
>
> > The stupid thing is that I don't know how to do 2). The packages seem to
> > be installed in
> > $HOME/.opam/system/lib, whereas I have a preexisting ocaml install
> (ubuntu).
> > Do it mean that I need to include this DIR in my Makefile ?
>
> You should use ocamlfind (opam install ocamlfind).
> Then, supposed your PATH includes your opam switch bindir
> (which it should), then:
>
> ocamlfind ocamlc -where
>
> should point toward your opam switch libdir.
> At this point, compiling using ocamlfind boils down to:
>
> ocamlfind ocamlopt -package lib1,lib2,lib3 ...other-options... -c
> module.ml
>
> where lib1 etc are the name registered in the META files (usually the same
> as
> the opam package name)
>
> Since OcamlMakefile already uses ocamlfind (apparently for libraries
> specified
> by the PACKS parameter) I guess everything should runs all right.
>
>
>  
>